Berit L. Strand

Seminar Announcement: Berit L. Strand

Oct. 12, 2021

Polysaccharides represents an abundant class of biopolymers, of which cellulose in trees and chitin from Crustacea are common examples. Alginates from seaweed have high affinity to divalent cations and form hydrogels by ionic crosslinking.

Kyle Bishop

Seminar Announcement: Kyle J. M. Bishop

Oct. 1, 2021

Mobile robots combine sensory information with mechanical actuation to move autonomously through complex environments and perform specific tasks (e.g., a robot vacuum cleaner). The miniaturization of such robots to the size of living cells (ca. 2-40 mm) is actively pursued for applications in biomedicine, materials science, and environmental sustainability. In pursuit of these “microrobots”, we seek to understand the many mechanisms underlying the self-propulsion of colloidal particles through viscous fluids. Building on this understanding, we seek to design active particles capable of autonomous behaviors such as navigation of structured environments. In this talk, I discuss two recent efforts – on Quincke oscillators and magnetic topotaxis, respectively – that highlight these complementary aims to understand and design active colloids. In part one, I explain how static electric fields drive the oscillatory motion of micron-scale particles commensurate with the thickness of a field-induced boundary layer in nonpolar electrolytes. In part two, I describe how spatially uniform, time-periodic magnetic fields can be designed to power and direct the migration of ferromagnetic spheres up local gradients in surface topography.

Andrew White

Seminar Announcement: Andrew White

Sept. 29, 2021

Deep learning has begun a renaissance in chemistry and materials. We can devise and fit models to predict molecular properties in a few hours and deploy them in a web browser. We can create novel generative models that were previously PhD theses in an afternoon.

Bradley Olsen

Seminar Announcement: Bradley Olsen

Sept. 7, 2021

Seminar : Polymer Informatics and High-Throughput Experimentation to Help Us Discover New Sustainable Polymers Speaker : Bradley Olsen, Alexander and I. Michael Kasser Professor of Chemical Engineering, Massachusetts Institute of Technology Host : Dan Schwartz Tuesday, October 5, 2021 - 2:45 p.m. - JSCBB A108 Professor Bradley Olsen Seminar Abstract...

Lauren Zarzar

Seminar Announcement: Lauren Zarzar

Sept. 7, 2021

Seminar : Active Droplets that Swim, Chase and Organize Speaker : Lauren Zarzar, Assistant Professor, Pennsylvania State University Host : Ryan Hayward Tuesday, September 21, 2021 - 2:45 p.m. - JSCBB A108 Assistant Professor Lauren Zarzar Seminar Abstract Chemotactic interactions are ubiquitous in nature and can lead to complex emergent...

Ximin He

Seminar Announcement: Ximin He

Aug. 31, 2021

Seminar : Bio-like Structural Hydrogels with Life-like Intelligence Speaker : Ximin He, Assistant Professor of Materials Science and Engineering, University of California, Los Angeles Host : Andrew Goodwin Tuesday, September 14, 2021 - 2:45 p.m. via Zoom Assistant Professor Ximin He Seminar Abstract From the cellular level up to the...

Marta Hatzell

Seminar Announcement: Associate Professor Marta C. Hatzell

Aug. 20, 2021

Seminar : Managing the Nitrogen Cycle with Photo and Electrochemistry Speaker : Marta C. Hatzell, Associate Professor of Mechanical Engineering, Georgia Institute of Technology Host : Wilson Smith Tuesday, August 31, 2021 - 2:45 p.m. to 4:00 p.m. MDT via Zoom Seminar Abstract Of the four major energy-use sectors (transportation,...